22122102111012 has 36 divisors (see below), whose sum is σ = 56707360347456. Its totient is φ = 7270174401840.

The previous prime is 22122102110993. The next prime is 22122102111073. The reversal of 22122102111012 is 21011120122122.

22122102111012 is a `hidden beast` number, since 221 + 2 + 210 + 211 + 10 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4327482208 + ... + 4327487319.

It is an arithmetic number, because the mean of its divisors is an integer number (1575204454096).

Almost surely, 2^{22122102111012} is an apocalyptic number.

It is an amenable number.

22122102111012 is an abundant number, since it is smaller than the sum of its proper divisors (34585258236444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22122102111012 is a wasteful number, since it uses less digits than its factorization.

22122102111012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8654969608 (or 8654969603 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22122102111012 its reverse (21011120122122), we get a palindrome (43133222233134).

The spelling of 22122102111012 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred two million, one hundred eleven thousand, twelve".